I stretch a bit first.
Resistance Bike (1 hour on mid level) ,or, running laps in my backyard (30 mins - 1 hour) , or, explody-lung suicide sprints (as many as I can freakin' take without dieing). I also end up outside with the dogs a lot (if the weather is nice). We play 'keep-away' with tennis balls, or I'll walk laps as they play with each other and do their doggy business. So I take small 10 minute walks or laps, throughout the day. (on top of the routine).
Some strength (for my arms) with small dumbbells.
And then the basic exercises you learn in gym as a kid, and what my coach taught me.
Sit-ups, sissy push-ups, crunches, jumping-jacks, squats, jack-knives; that sort of thing.
And of course, sexy time with the husband. Bow-chika-wow-wow =D